ICS 75.100 CCS E 34 中华人民共和国石油化工行业标准 NB/SH/T 0764—2023 代替 SH/T 0764 —2005 柴油机喷嘴结焦试验方法 XUD-9法 Test method for diesel engine i njector nozzle coking test XUD -9 2023-02-06发布 2023-08-06实施 NB/SH/T 0764—2023 I 目 次 前言 ·····························································································································II I 1 范围 ························································································································· 1 2 规范性引用文件 ·········································································································· 1 3 术语和定义 ················································································································ 2 4 方法概要 ··················································································································· 2 5 试剂与材料 ················································································································ 2 5.1 参比油 ················································································································· 2 5.2 试验基础燃油 ········································································································ 4 5.3 冷却液 ················································································································· 4 6 试验设备 ··················································································································· 5 6.1 试验发动机 ··········································································································· 5 6.2 试验台架 ·············································································································· 5 6.3 燃油系统 ·············································································································· 5 6.4 电路系统 ·············································································································· 6 6.5 冷却系统 ·············································································································· 6 6.6 发动机冷却液 ········································································································ 6 6.7 排气系统 ·············································································································· 6 6.8 机油冷却系统 ········································································································ 6 6.9 空气过滤系统 ········································································································ 6 6.10 曲轴箱通风系统 ··································································································· 6 6.11 发动机燃油泵改造 ································································································ 7 6.12 发动机燃油泵标定 ································································································ 7 6.13 控制 ·················································································································· 7 6.14 喷嘴质量流量的测量 ····························································································· 7 6.15 测量设备 ············································································································ 7 6.16 测量位置 ············································································································ 7 7 标定试验 ··················································································································· 8 7.1 新发动机或新装配的试验台架 ··················································································· 8 7.2 常规标定试验 ········································································································ 8 7.3 标定试验结果报告 ·································································································· 9 8 试验准备 ···································································································